Chief of staff
The title chief of staff (or head of staff) identifies the leader of a complex organization such as the armed forces, institution, or body of persons and it also may identify a principal staff officer (PSO), who is the coordinator of the supporting staff or a primary aide-de-camp to an important individual, such as a president, or a senior military officer, or leader of a large organization.
In general, a chief of staff provides a buffer between a chief executive and that executive's direct-reporting team. The chief of staff generally works behind the scenes to solve problems, mediate disputes, and deal with issues before they are brought to the chief executive. Often chiefs of staff act as a confidant and advisor to the chief executive, acting as a sounding board for ideas. Ultimately the actual duties depend on the position and the people involved.
Civilian
Government
- Chief of Staff of the Presidency (Brazil)
- Chief of Staff to the Prime Minister (Canada)
- Chief Presidential Secretary, chief of staff to the President of South Korea
- Chief of Staff (Philippines), a former position in the Cabinet of the Philippines, serving under the President of the Philippines
- Moncloa Chief of Staff (Spain)
- Chief of Staff to the President (Nigeria)
- Downing Street Chief of Staff (United Kingdom)
- Principal Secretary to the Prime Minister of Pakistan (Chief of Staff of PM)
- Chief of staff (United States Congress), the most senior staff member in the office of a member of the United States Congress
- Principal Secretary to the Prime Minister of India (PS to PM)
Military
In general, the positions listed below are not "chiefs of staff" as defined at the top of this page; they are the heads of the various forces/commands and tend to have subordinates that fulfill the "chief of staff" roles.
In general
In Azerbaijan
- Chief of General Staff of Azerbaijani Armed Forces - head of General Staff of Azerbaijani Armed Forces
In France
- Chief of the Defence Staff (French: Chef d'État-Major des Armées, CEMA)
- Chief of Staff of the French Air Force (French: Chef d'État-Major de l'Armée de l'Air, CEMAA)
- Chief of Staff of the French Army (French: Chef d'État-Major de l'Armée de Terre, CEMAT)
- Chief of Staff of the French Navy (French: Chef d'État-Major de la Marine, CEMM)
- Chief of Staff of the French Gendarmerie (French: Directeur-Général de la Gendarmerie, DGGN)
In Ghana
In Greece
- Chief of the Defence Staff (Greece)
- Chief of Staff of the Hellenic Air Force
- Chief of Staff of the Hellenic Army
- Chief of Staff of the Hellenic Navy
In India
In Indonesia
In Ireland
In Israel
In Italy
- Chief of the Defence Staff
- Chief of the Army Staff
- Chief of the Navy Staff
- Chief of the Air Force Staff
In Pakistan
In the Philippines
- Chief of Staff, Armed Forces of the Philippines - exercises command and control over all elements of the Armed Forces of the Philippines
In Portugal
- Chief of the General Staff of the Armed Forces (Portuguese: Chefe do Estado-Maior-General das Forças Armadas, CEMGFA) - operational commander of the Portuguese Armed Forces
- Chief of Staff of the Navy (Portuguese: Chefe do Estado-Maior da Armada, CEMA) - commander of the Portuguese Navy
- Chief of Staff of the Army (Portuguese: Chefe do Estado-Maior do Exército, CEME) - commander of the Portuguese Army
- Chief of Staff of the Air Force (Portuguese: Chefe do Estado-Maior da Força Aérea, CEMFA) - commander of the Portuguese Air Force
In Spain
In Sri Lanka
- Chief of the Defence Staff (Sri Lanka) - the most senior appointment in the Sri Lankan Armed Forces.
- Chief of Staff of the Army - deputy commander of the Sri Lankan Army
- Chief of Staff of the Navy - deputy commander of the Sri Lankan Navy
- Chief of Staff of the Air Force - deputy commander of the Sri Lankan Air Force
In the United Kingdom
- Chief of the Defence Staff (CDS) - the professional head of the British Armed Forces.
- Chief of the Naval Staff, more commonly called the First Sea Lord
- Chief of the General Staff, formerly the Chief of the Imperial General Staff
- Chief of the Air Staff
The Sovereign is the Commander-in-Chief. The CDS heads the Chiefs of Staff Committee and is assisted by the Vice-Chief of the Defence Staff.
In the United States
- Joint Chiefs of Staff, headed by the Chairman of the Joint Chiefs of Staff (CJCS)
- Chief of Staff of the United States Army
- An Army general (O-10) serving as the senior ranking officer within the United States Army, but subordinate to any Army O-10 serving as CJCS or Vice CJCS
- Chief of Staff of the United States Air Force
- An Air Force general (O-10) serving as the senior ranking officer within the United States Air Force, but subordinate to any USAF O-10 serving as CJCS or Vice CJCS
- Chief of Staff of the United States Army
- In unified combatant commands, headed by a general (O-10) or Navy admiral (O-10)
- A major general (O-8) or Navy or Coast Guard rear admiral (O-8) overseeing the command's directorates
- In military commands headed by a lieutenant general (O-9), vice admiral (O-9), major general (O-8) or rear admiral (O-8), or brigadier general (O-7) or rear admiral, lower half (O-7)
- A colonel (O-6) or Navy or Coast Guard captain (O-6) overseeing the entire general officer's/flag officer's command staff; in some cases may also be referred to as an executive assistant or executive officer
- In some commands and organizations, two officers in pay grade O-6 may be assigned as chief of staff and executive assistant, respectively.
- A colonel (O-6) or Navy or Coast Guard captain (O-6) overseeing the entire general officer's/flag officer's command staff; in some cases may also be referred to as an executive assistant or executive officer